KTM 50 SX vs Yamaha SR400 Comparison

Engine & Performance

Emission Control	Catalytic Converter	Catalytic Converter
Bore X Stroke	39.5 mm x 40 mm	87 mm x 67.2 mm
Exhuast Pipes	Single	1 into 1 Exhaust
No. Of Cylinder	1	1
Valves Per Cylinder	2	2
Valve Configuration	SOHC	SOHC
No. Of Strokes	2-Stroke	4-Stroke
Lubrication System	Wet Sump	Wet Sump
Spark Plugs Per Cylinder	1	1
Engine Type	Single Cylinder, 2-Stroke, Liquid Cooled	Single Cylinder, 4-Stroke, Air Cooled
Clutch Type	Multiplate, Centrifugal	Wet Multi-Plate
Injection Type	Indirect Injection	Indirect Injection
Cooling System	Liquid Cooling	Air Cooling
Drive Type	Chain Drive	Chain Drive
Displacement	49 cc	399 cc
Compression Ratio	--	8.5:1

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Electrical

Tail Lamp	No	Halogen
Adjustable Headlights	No	Yes
Head Lamp	No	Projector Lamp
Indicator Light	No	Bulb
Battery Voltage	12 V	12V, 2.5 Ah
Accessory Outlet	No	No

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Fuel & Ignition

Ignition Type	Digital Ignition	TCI
Fuel Type	Petrol	Petrol
Fuel Supply System	EFI	EFI
Start Option	Kick	Kick

Chassis & Suspension

Seat Type	Slender	Dual Straight
Electronic Suspension Adjustment	No	No
Body Frame Type	Central Tube	Kazemi's Double Academy
Body Frame Material	Chrome, Molybdenum, Steel	Steel
Front Suspension	USD WP Suspension	Telescopic
Rear Suspension	WP Suspension	Swing Arm
Suspension Travel(Front)	205 mm	--
Suspension Travel(Rear)	185 mm	--
Side Wings	Yes	No
Chrome Garnish	Yes	Yes

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Wheels & Tyres

Front Wheel Size	R12	R18
Rear Wheel Size	R10	R18
Front Tyre	60/100 R12	90/100 R18
Rear Tyre	--	110/90 R18

Dimension

Seating Capacity	2	2
Wheelbase	1032 mm	1410 mm
Ground Clearance	252 mm	130 mm
Seat Height	684 mm	785 mm
Dry Weight	41.5 kg	--
Height	--	1095 mm
Length	--	2085 mm
Width	--	750 mm
Oil Tank Capacity	--	2 L
Curb Weight	--	174 kg

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Gear & Transmission

Transmission Type	Manual	Manual
Gear Box	5-Speed	5-Speed

Safety & Security

Side Reflectors	No	No
Shutter Lock	No	No
Launch Control	No	No
Traction Control	No	No
Riding Modes	Off Road Off Road	Street Street
Stability Control	No	No
Engine Check Warning	No	Yes
Leg Guards	No	No
Pass Switch	No	Yes
Central Locking	No	No
ABS	Yes	No
Back Rest	No	No
Engine Immobilizer	Optional Optional	Yes
Anti-Theft Alarm	Optional Optional	No

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Console

Tachometer	No	Analog Analog
Display Screen	No	No
Side Stand Indicator	No	No
Oil Change Indicator	No	No
Odometer	No	Analog Analog
Navigator	No	No
Speedometer	No	Analog Analog
Fuel Gauge	No	Analog Analog

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Differentiating Features

Cruise Control	No	Optional Optional
Height Adjustable Seats	No	No

Brake

Front Brake	Disc Disc	Disc Disc
Rear Brake	Disc Disc	Drum Drum